"Sat, 20 Apr 2024 16:10:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
16:10:35
General datetime
2024-04-20 16:10:35Z
For Database
2024-04-20 16:10:35
For HTTP1.1
Sat, 20 Apr 2024 16:10:35 GMT